11th International Workshop on the Mechanisms of Vacuum Arcs (MeVArc 2024)

from Sunday 3 March 2024 (15:00) to Thursday 7 March 2024 (22:00)


        : Sessions
    /     : Talks
        : Breaks
3 Mar 2024
4 Mar 2024
5 Mar 2024
6 Mar 2024
7 Mar 2024
AM
08:00
Modeling and Simulations (until 10:00)
08:00 Theory of field emission through dielectric pores in the metal surface layer - Serhii Lebedynskyi (Institute of Applied Physics, National Academy of Sciences of Ukraine)  
08:30 PIC-Simulations of an Intense Electron Beam Plasma using EMPIRE - Nancy Isner  
09:00 Unintended gas breakdowns in narrow gaps of advanced plasma sources for semiconductor fabrication industry - Dr Willca Villafana (Princeton Plasma Physics Laboratory)  
09:30 Modified Theory and Fluid Modeling for DC Breakdown - Adnan Mansour (Stanford University)  
10:00 --- Discussion Break ---
10:30
Experiments and Diagnostics (until 12:00)
10:30 The influence of arcing on radio-frequency capacitively coupled plasma - chul hee cho (Chungnam national university)  
11:00 Emission Characteristics of a Broad-Area Molybdenum Cathode under an Inhomogeneous Electric Field - Moein Borghei (Avalanche Energy)  
11:30 A 500 kV SF6 insulated feedthrough for inverted insulator photoguns - Gabriel Palacios Serrano (Thomas Jefferson National Accelerator Facility)  
08:00
Experiments and Diagnostics (until 10:00)
08:00 Analysis of the micro-scale dynamics of X-Ray emission profiles collected with a GEM detector in needle-plane experiments at HVPTF - Federico Caruggi (Universita & INFN, Milano-Bicocca (IT))  
08:30 X-ray Micro-Discharges Fine Dynamics in a Vacuum High Voltage Experiment - Silvia Spagnolo (Consorzio RFX)  
09:00 Aspect of High Field Testing - Victoria Madeleine Bjelland  
09:30 Study of different materials exposed to low energy H- irradiation and its effects on high voltage breakdown resistance - Catarina Serafim (CERN)  
10:00 --- Discussion Break ---
10:30
Field Emission (until 12:00)
10:30 Field emission assisted heating of Cs2Te photocathode: Implication toward RF breakdown - Ryo Shinohara  
11:00 Deducing the size of breakdown inducing tips from their beam spot shape - Salva Barranco Cárceles (University of Edinburgh)  
11:30 General Thermal-Field Emission and Space-Charge Limits for Particle-In-Cell and Nexus Theory - Adam Darr  
08:00
Modeling and Simulations (until 09:30)
08:00 Mechanisms of bubble growth and blistering on metals exposed to hydrogen - Alvaro Lopez Cazalilla  
08:30 Decoupled discretization of plasma-material interfaces in multiphysics PIC simulations - Zakari Eckert (Sandia National Laboratories)  
09:00 3D PIC-DSMC Simulation of Strongly Coupled Cathode Spot Plasma Dynamics During Vacuum Arc Initiation: A Cautionary Tale - Chris Moore  
09:30
Closing Statements (until 10:00)
10:00 --- Discussion Break ---
PM
17:00
Organizer meeting (until 18:00)
18:00
Reception (until 21:00)
12:00
Lunch (until 13:00)
13:00
Opening remarks (until 13:15)
13:15
Applications (until 15:15)
13:15 Power flow and vacuum breakdown in variable-impedance transmission lines under high self-magnetic fields - David Sirajuddin (Sandia National Laboratories)  
13:45 High gradient RF challenges in the muon collider - Alexej Grudiev (CERN)  
14:15 Searching for Rare Events in the Field Emitted Current of High-Field RF Cavities - Mr Lee Millar (CERN)  
14:45 Effect of desorbed gases in the onset of HVDC breakdown between stainless steel electrodes insulated by high vacuum - Nicola Pilan  
15:15
Poster Session (until 17:15)
15:15 A Method for Uncertainty Quantification of Electron Scattering Cross Sections in Plasma Physics Simulations - Ian Rittersdorf  
15:15 Atomic and electronic structure of pure liquid copper by density functional theory and molecular dynamics simulation - Susumu Kato  
15:35 Morphology Changes due to Ohmic Heating of Surfaces - Matthew Hopkins  
15:35 R&D of X-band deflecting structure applied on SHINE - Jianhao Tan  
15:55 On effect of surface carbon diffusion on growth of field emitting tips under high electric fields - Marzhan Toktaganova  
15:55 PIC Simulations of the Anode Sheath in Low-Pressure DC Discharges - Grant Gorman (Sandia National Laboratories)  
16:15 Dependence of vacuum arc initiation dynamics on the application of a static magnetic field - Roni Koitermaa (University of Helsinki)  
16:15 Relativistic 1D PIC-MCC modeling and simulation of impedance collapse in high-voltage diodes - Vedanth Sharma (Stanford University)  
16:35 Gas conditioning of DC high voltage photoguns using krypton - Carlos Hernandez-Garcia  
16:35 Observation of fireball-triggered RF breakdowns in a 509-MHz normal-conducting cavity and its initial simulation study - Takaaki Yamaguchi (KEK)  
16:55 Monte Carlo simulation of vacuum breakdown occurence - Andreas Kyritsakis  
18:00
Reception (until 20:00)
12:00
Lunch (until 13:30)
13:30
Field Emission (until 15:30)
13:30 High Gradient C-band Cryogenic Copper Silver Structures - Mitchell Schneider (SLAC National Accelerator Laboratory)  
14:00 Cryogenic High Gradient RF Dark Current Studies at CYBORG Beamline - Gerard Lawler  
14:30 Exploring high gradient limit with cryogenic experiments at FREIA laboratory - Marek Jacewicz (Uppsala University (SE))  
15:00 Field emission current evolution during conditioning at cryogenic temperatures - Mircea Coman (Uppsala University)  
15:30 --- Discussion Break ---
16:30
Modeling and Simulations (until 18:00)
16:30 Hybrid Modelling of Vacuum Arc in Current Zero - Rui Li  
17:00 Study on Transition from Field Emission to Delay Breakdown - Xinguo Zhang  
17:30 Concurrently coupled particle-in-cell, emission, and heating simulations of vacuum arc plasma initiation - Roni Koitermaa (University of Helsinki)  
12:00
Lunch (until 13:00)
13:00
Experiments and Diagnostics (until 15:00)
13:00 Field Dependence of Conditioning Part 1: Electrode Simulation and Design - Mr Lee Millar (CERN)  
13:30 Field Dependence of Conditioning-Experimental Measurements - Victoria Madeleine Bjelland  
14:00 Signs of plastic response in surfaces exposed to high electric fields. - Yinon Ashkenazy (The Hebrew University of Jerusalem (IL))  
14:30 In-situ observation of field-induced nano-protrusion growth on a carbon-coated tungsten nanotip - Andreas Kyritsakis  
15:00 --- Discussion Break ---
16:00
Modeling and Simulations (until 17:30)
16:00 Fireball-Triggered Vacuum Breakdown in Particle Accelerators - Dr Tetsuo Abe  
16:30 Simulation approach to investigate the influence of electromagnetic power in vacuum breakdown - Tauno Tiirats (University of Tartu)  
17:00 Nonlinear simulation of the electrothermal instability in electrode plasmas - Alexander R. Vazsonyi (US Naval Research Laboratory)  
18:30
Banquet (until 21:00)
12:00
Lunch (until 13:30)
18:00
Organizer meeting (until 19:00)